I showed my girlfriend this site and all the BIG girls, (She was just a 36C), and at first she was kind of grossed out by anyone bigger than a DD. We kept talking about her boobs and how I love huge ones, then I showed her my dream woman, LDM. The more she saw me on this site, the more often she would come over to look at the girls. After a while, my fetish became her fetish. Then, I stumbled upon a thread in the Real World forum about inducing lactation. It takes a LOT of commitment, and a regular schedule of feedings, but I'm happy to announce that she is currently at a 40GG, and wants to be at least Linsey's size, (Which, last I knew was JJ).
So, I guess what I'm trying to say is, let her see you surfing the forums, and if she doesn't want implants, maybe you can get her to breastfeed you until she GROWS bigger.